--- /dev/null
+/* This program receives an rx01 image from the serial port from the PDP8 dump
+ program. It will prompt for the file to receive or use first command
+ line argument. It needs a config file dumprest.cfg or $HOME/.dumprest.cfg
+ with the format defined in config.c
+
+ This program should be running before the PDP8 end is started.
+
+ On the PC ctrl-break will terminate the program
+*/
+#ifdef PC
+#include "encom.h"
+#else
+#include <termios.h>
+#include <unistd.h>
+#include <memory.h>
+#endif
+
+#include <stdio.h>
+#include <fcntl.h>
+#include <time.h>
+#include <signal.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define ARRAYSIZE(a) (sizeof(a) / sizeof(a[0]))
+
+int terminate = 0;
+
+#include "config.c"
+#include "comm.c"
+
+main(argc,argv)
+ int argc;
+ char *argv[];
+{
+ int fd,c,i;
+ FILE *out;
+ char filename[256];
+ long baud;
+ char serial_dev[256];
+ int two_stop;
+ unsigned char buf[200];
+ int count,scnt,byte;
+ int chksum = 0;
+ unsigned int track;
+ int badflag = 0;
+ int sect_size;
+
+ setup_config(&baud,&two_stop,serial_dev);
+
+ if (argc > 1) {
+ strcpy(filename,argv[1]);
+ } else {
+ printf("Enter file name to receive\n");
+ fflush(stdout);
+ scanf("%s",filename);
+ }
+
+#ifdef PC
+ out = fopen(filename,"wb");
+#else
+ out = fopen(filename,"w");
+#endif
+ if (out < 0) {
+ fprintf(stderr,"On file %s ",filename);
+ perror("open failed");
+ exit(1);
+ }
+
+#if 0
+ /* For testing read from file, only works in unix version */
+ fd = open("dat",O_RDONLY,0666);
+ if (fd < 0) {
+ perror("Open failed on dat");
+ exit(1);
+ }
+#else
+ fd = init_comm(serial_dev,baud,two_stop);
+#endif
+
+ count = -3;
+ scnt = 0;
+ byte = 0;
+ while(!terminate) {
+ c = ser_read(fd,(char *)buf,sizeof(buf));
+ if (c < 0) {
+ perror("Serial read failed");
+ exit(1);
+ }
+ for (i = 0; i < c; i++) {
+ chksum = chksum + buf[i];
+ if (count < 0 ) {
+ /* - Checksum at end */
+ if (count == -3) {
+ switch(buf[i]) {
+ case 022:
+ printf("Single density disk (RX01)\n");
+ sect_size = 128;
+ break;
+ case 044:
+ printf("Double density disk (RX02)\n");
+ sect_size = 256;
+ break;
+ default:
+ printf("Unknow or quad density, not able to dump %o\n",buf[i]);
+ exit(1);
+ break;
+ }
+ count = -1;
+ } else
+ if (count == -2) {
+ fclose(out);
+ if ((chksum & 0xff) != 0) {
+ printf("\nChecksum bad %x\n",chksum & 0xff);
+ exit(1);
+ }
+ printf("\nDone\n");
+ exit(0);
+ } else {
+ /* Start of sector flag */
+ if (buf[i] == 0xff || buf[i] == 0xfd) {
+ count = 0;
+ byte = 0;
+ if (buf[i] == 0xfd)
+ badflag = 1;
+ } else {
+ /* How about checksum flag */
+ if (buf[i] == 0xfe) {
+ count = -2;
+ byte = 0;
+ } else {
+ printf("\nMissing start of block flag\n");
+ exit(1);
+ }
+ }
+ }
+ } else {
+ /* get track */
+ if (byte == 0) {
+ track = buf[i];
+ byte++;
+ } else
+ /* and sector */
+ if (byte == 1) {
+ if (badflag) {
+ printf("\nTrack %d sector %d bad\n", track,buf[i]);
+ badflag = 0;
+ }
+ fseek(out, ((long)track*26 + buf[i] - 1) * sect_size, SEEK_SET);
+ byte++;
+ } else
+ /* Sector data */
+ if (byte == 2) {
+ fwrite(&buf[i],1,1,out);
+ count++;
+ if (count == sect_size) {
+ count = -1;
+ scnt++;
+ if (scnt % 26 == 0) {
+ printf("Track %d\r",scnt / 26);
+ fflush(stdout);
+ }
+ }
+ }
+ }
+ }
+ }
+ return 1;
+}